A display apparatus includes: a substrate having a display area and a peripheral area outside the display area; a first insulating layer over both the display area and the peripheral area; a first dam over the peripheral area and spaced apart from the first insulating layer; an electrode power supply line, at least a part of the electrode power supply line being located between the first insulating layer and the first dam; a protection conductive layer over the first insulating layer, the protection conductive layer extending over the electrode power supply line and electrically connected to the electrode power supply line; a pixel electrode over the first insulating layer in the display area; an opposite electrode over the pixel electrode; and a capping layer covering the opposite electrode and extending outside the opposite electrode such that an end of the capping layer is on the first insulating layer.
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2. The display apparatus of claim 1, wherein a bonding strength between the inorganic encapsulation layer and the protection conductive layer is higher than a bonding strength between the inorganic encapsulation layer and the capping layer.
3. The display apparatus of claim 1, further comprising a protection layer between the capping layer and the inorganic encapsulation layer.
4. The display apparatus of claim 3, wherein the protection layer extends outside the capping layer such that the capping layer and the inorganic encapsulation layer do not directly contact each other.
5. The display apparatus of claim 4, wherein an end of the protection layer is over the first insulating layer.
A display apparatus includes a substrate with a display area and a peripheral area. The apparatus has a first insulating layer over the substrate, a second insulating layer over the first insulating layer, and a protection layer over the second insulating layer. The protection layer extends into the peripheral area and covers a portion of the first insulating layer while leaving another portion of the first insulating layer exposed. The protection layer is configured to protect underlying layers from external damage, such as moisture or physical impact. The first insulating layer provides electrical insulation and structural support, while the second insulating layer further enhances insulation and protection. The protection layer's selective coverage ensures that critical regions are shielded while allowing access to other areas for electrical connections or other functional purposes. This design improves display reliability by preventing contamination or damage to sensitive components in the peripheral area while maintaining necessary connectivity. The apparatus is particularly useful in flexible or foldable displays where edge protection is critical to device longevity.
6. The display apparatus of claim 4, wherein an end of the protection layer contacts the protection conductive layer.
7. The display apparatus of claim 4, wherein the protection layer comprises lithium fluoride (LiF).
A display apparatus includes a light-emitting layer and a protection layer that prevents degradation of the light-emitting layer. The protection layer is positioned between the light-emitting layer and an electrode, shielding the light-emitting layer from environmental factors such as moisture and oxygen. The protection layer is made of lithium fluoride (LiF), which provides a stable barrier while maintaining electrical conductivity. The light-emitting layer emits light when an electric current is applied, and the protection layer ensures long-term performance by reducing degradation. The apparatus may be used in organic light-emitting diode (OLED) displays or other emissive display technologies where protection against environmental damage is critical. The LiF layer enhances device longevity without significantly affecting optical or electrical properties.
8. The display apparatus of claim 4, wherein a bonding strength between the protection layer and the inorganic encapsulation layer is higher than a bonding strength between the capping layer and the inorganic encapsulation layer.
9. The display apparatus of claim 1, further comprising a second dam between the first dam and the first insulating layer, at least a part of the second dam being located over the protection conductive layer.
A display apparatus includes a substrate with a display area and a peripheral area surrounding the display area. The apparatus has a first dam in the peripheral area, which is formed on the substrate and includes a first insulating layer. A protection conductive layer is formed over the first insulating layer, and a second dam is positioned between the first dam and the first insulating layer. At least part of the second dam is located over the protection conductive layer. The second dam helps prevent material from flowing into the display area during manufacturing processes, such as deposition or coating, ensuring proper formation of layers in the display area. The protection conductive layer provides electrical shielding or grounding to protect underlying components from electrical interference or damage. The first dam and second dam work together to enhance the reliability and performance of the display apparatus by maintaining the integrity of the deposited layers in the peripheral area. This structure is particularly useful in organic light-emitting diode (OLED) displays or other advanced display technologies where precise layer formation is critical.
10. The display apparatus of claim 9, wherein a height of the first dam from the substrate is greater than a height of the second dam from the substrate.
11. The display apparatus of claim 10, further comprising a second insulating layer over the first insulating layer, wherein the first dam comprises a first layer including a same material as the first insulating layer and a second layer including a same material as the second insulating layer, and the second dam includes a same material as the second insulating layer.
12. The display apparatus of claim 1, wherein an end of the capping layer is between an end of the first insulating layer and the aperture.
13. The display apparatus of claim 1, wherein the capping layer has an upper surface corresponding to an unevenness of an upper surface of a layer below the capping layer.
14. The display apparatus of claim 9, wherein the lower surface of the inorganic encapsulation layer contacts the protection conductive layer from the portion of the protection conductive layer that is over the first insulating layer to the second dam.
15. The display apparatus of claim 1, wherein the protection conductive layer fills the aperture.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
September 29, 2017
October 18, 2022
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